: look at

: http://www.guillemot-kayaks.com/KBbbsOld/14460.shtml

: looks like greg'll mail you more info if you want.

Hi there, Bill and Mike.

I've been working on an adjustable skeg as well, and thought I'd toss in my two cents'... .

Other builders who have added skegs to their 'squirrelly' boats have been using a longer, shallower skeg shape than Greg's with good success. I (non-expertly, mind you) theorize that rudders and skegs act differently: Rudders work by creating drag as well as by moving the center of lateral resistance aft, while skegs function by 'only' moving the center of lateral resistance aft. That is, a skeg should work as well even if its drag profile is zero. So, with a longer, shallower skeg shape (with the same area), one can minimize the drag component while keeping the relocation function.

I don't have pictures yet, but imagine perhaps the old F-111 swing-wing fighter bombers. The wings' surface area stays the same, but with them extended, more drag profile is created, while the wings in the swept back position act more like fins.

This should make the system more efficient by creating less drag, yes?

Pete Roszyk,
in Snohomish, WA